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Genetic Algorithm Based Equalizer for Ultra-Wideband Wireless Communication Systems
Nazmat SURAJUDEEN-BAKINDE Xu ZHU Jingbo GAO Asoke K. NANDI Hai LIN
IEICE TRANSACTIONS on Communications
Publication Date: 2010/10/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
genetic algorithm, ultra-wideband, maximum likelihood detection, minimum mean square error equalizer, RAKE receivers,
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In this paper, we propose a genetic algorithm (GA) based equalization approach for direct sequence ultra-wideband (DS-UWB) wireless communication systems, where the GA is combined with a RAKE receiver to combat the inter-symbol interference (ISI) due to the frequency selective nature of UWB channels for high data rate transmission. The proposed GA based equalizer outperforms significantly the RAKE and the RAKE-minimum mean square error (MMSE) receivers according to results obtained from intensive simulation work. The RAKE-GA receiver also provides bit-error-rate (BER) performance very close to that of the optimal RAKE-maximum likelihood detection (MLD) approach, while offering a much lower computational complexity.